WetCanvas
Home Member Services Content Areas Tools Info Center WC Partners Shop Help
Channels:
Search for:
in:

Welcome to the WetCanvas forums. You are currently viewing our boards as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please visit our help center.

Go Back   WetCanvas > The Learning Center > Color Theory and Mixing
User Name
Password
Register Mark Forums Read

Salute to our Partners
WC! Sponsors

Our Sponsors
Reply
 
Thread Tools Display Modes
  #16   Report Bad Post  
Old 08-25-2019, 04:34 AM
Ted Bunker's Avatar
Ted Bunker Ted Bunker is offline
Senior Member
Southern NJ
 
Join Date: Jul 2018
Posts: 196
 
Hails from United States
Re: Painting from an IPad image

The camera does not lie, but it does not tell the truth. - Unknown

I wonder if there's a resulting-color between an image that you took yourself where the Ipad image is a reminder reference, ...and one where you only have the Ipad image alone. In the first-case you remember the light, the overall context, what lies beyond the frame ...even if just subconsciously.

I place reference photos in three degrees of experience and gesalt;
1. The photograph you took yourself.
2. The photogragh of a place you've been and experienced yourself, but someone else framed and shot. Perhaps a historial view, or a different season.
3. The photograph of an unknown place to you.
__________________
Radical Fundemunsellist
Reply With Quote
  #17   Report Bad Post  
Old 08-27-2019, 06:35 AM
tiago.dagostini tiago.dagostini is offline
Enthusiast
 
Join Date: Jun 2009
Posts: 1,563
 
Hails from Brazil
Re: Painting from an IPad image

Quote:
Originally Posted by theBongolian
Is that true? I would think colors on a computer screen could produce more colors than exist in nature. Certainly it can put an amount and variety of colors into one image that you would never see in one place in nature.




Computer monitors can produce much much less colors than what the human eye can see, specially in the green zone and in value levels (we can detect much more levels of luminosity).


I work now developing software for medical image visualization, we use special monitors that have 16 times larger range than a normal monitor.. and you can see clearly the difference when you put them side by side.
__________________
"no no! You are doing it all wrong, in the internet we are supposed to be stubborn, inflexible and arrogant. One cannot simply be suddenly reasonable and reflexive in the internet, that breaks years of internet tradition as a medium of anger, arrogance, bigotry and self entitlement. Damm these internet newcomers being nice to to others!!!"

"If brute force does not solve your problem, then you are not using enough!"
Reply With Quote
  #18   Report Bad Post  
Old 08-27-2019, 06:37 AM
tiago.dagostini tiago.dagostini is offline
Enthusiast
 
Join Date: Jun 2009
Posts: 1,563
 
Hails from Brazil
Re: Painting from an IPad image

Quote:
Originally Posted by WFMartin
Oh, of course it can be done; however, you need to give up the possibility of actually matching the colors on the screen with colors of paint.




For that it is called reference... and what we do its called art.. not copy.
__________________
"no no! You are doing it all wrong, in the internet we are supposed to be stubborn, inflexible and arrogant. One cannot simply be suddenly reasonable and reflexive in the internet, that breaks years of internet tradition as a medium of anger, arrogance, bigotry and self entitlement. Damm these internet newcomers being nice to to others!!!"

"If brute force does not solve your problem, then you are not using enough!"
Reply With Quote
  #19   Report Bad Post  
Old 08-27-2019, 11:18 AM
theBongolian's Avatar
theBongolian theBongolian is online now
Enthusiast
 
Join Date: Feb 2017
Posts: 1,396
 
Re: Painting from an IPad image

Quote:
Originally Posted by tiago.dagostini
Computer monitors can produce much much less colors than what the human eye can see, specially in the green zone and in value levels (we can detect much more levels of luminosity).
My question was - do computer monitors produce more colors than exist in a natural setting - a landscape? What about the specialised ones you work with?

Last edited by theBongolian : 08-27-2019 at 11:20 AM.
Reply With Quote
  #20   Report Bad Post  
Old 08-28-2019, 07:10 AM
tiago.dagostini tiago.dagostini is offline
Enthusiast
 
Join Date: Jun 2009
Posts: 1,563
 
Hails from Brazil
Re: Painting from an IPad image

Quote:
Originally Posted by theBongolian
My question was - do computer monitors produce more colors than exist in a natural setting - a landscape? What about the specialised ones you work with?




Not even close. Notice there is no such thing as colors existing in nature.. colors do not exist.. colors are interpretation about wavelength in our eyes and brain. Computers cannot get even close to the range of wavelengths that can generate different impressions in our brain.


Even the 12 bit per pixel monitors cannot reach all the range that can stimulate our visual system. LED lights cannot do it,


That ALSO happens in PHOTOS! The images recorded int he camera are restricted in the very same way. They are expressed in triplets of RGB values (ALL internals of ALL light sensors systems work in RGB, no not a single one works with other system) with a limited range for each component. Photos cannot be printed with more information than it was recorded by the sensors.. Most printers are EVEN MORE LIMITED than monitors on what they reproduce! The ones that can show more values than a good monitor are expensive ones..



Now for the critical part....that problem also happens in LIFE DRAWING! Yes, it happens because the colors are limited by the source of light in the environment. The banana you are drawing cannot reflect higher energy levels than what it received (but it can reflect lower energy frequencies due to the intrinsic loss of energy in any interaction).



No internal lighting will get close to the range allowed by sunlight! That means that the order of quality of colors you can observe is,


Live, under sunlight
Live, under artificial lighting
High quality Prints
High range LED displays

LED displays
Normal cheap Prints
LCD Displays
__________________
"no no! You are doing it all wrong, in the internet we are supposed to be stubborn, inflexible and arrogant. One cannot simply be suddenly reasonable and reflexive in the internet, that breaks years of internet tradition as a medium of anger, arrogance, bigotry and self entitlement. Damm these internet newcomers being nice to to others!!!"

"If brute force does not solve your problem, then you are not using enough!"
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 04:44 PM.


© 2014 F+W All rights reserved.